Reintroducing top predators from the Pleistocene, such as lions and cheetahs, could keep herbivores in check and restore lush forest structures and biodiversity that once existed in the western United States, Donlan's team argues.

Doyle, who was much more interested in reintroducing the shorts than he was in writing a feature-length film, ultimately got the gig anyway, although by the end, the screenplay went through at least 27 revisions, including passes by notables like Roger Schulman (``Shrek''), David X.

April 17 /PRNewswire/ -- Virgin Atlantic today announced that it plans to fly relief supplies to Iraq and to make a long-term commitment to Iraq by reintroducing the first scheduled services to Baghdad.

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